The entries() method returns a new Array Iterator object that contains the key/value pairs for each index in the array.
Syntax
arr.entries()
Return value
A new Array iterator object.
Examples
var arr = ['a', 'b', 'c']; var eArr = arr.entries(); console.log(eArr.next().value); // [0, 'a'] console.log(eArr.next().value); // [1, 'b'] console.log(eArr.next().value); // [2, 'c']
Same as above, using a for…of loop:
var arr = ['a', 'b', 'c'];
var eArr = arr.entries();
for (let e of eArr) {
console.log(e);
}
Specifications
| Specification | Status | Comment |
|---|---|---|
| ECMAScript 2015 (6th Edition, ECMA-262) The definition of 'Array.prototype.entries' in that specification. |
Standard | Initial definition. |
| ECMAScript 2017 Draft (ECMA-262) The definition of 'Array.prototype.entries' in that specification. |
Draft |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 38 | 28 (28) | No support | 25 | 7.1 |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | No support | No support | 28.0 (28) | No support | No support | 8.0 |
See also
Document Tags and Contributors
Tags:
Contributors to this page:
SphinxKnight,
Aravind46,
eduardoboucas,
fscholz,
Delapouite,
arai,
fasttime,
Mingun,
realityking,
vladikoff
Last updated by:
SphinxKnight,